drm/amdgpu: add upper bound check on user inputs in signal ioctl

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CVE-2026-43400

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: add upper bound check on user inputs in signal ioctl Huge input values in amdgpuuserqsignalioctl can lead to a OOM and could be exploited. So check these input value against AMDGPUUSERQMAXHANDLES which is big enough...

CVE-2026-43400

CVE-2026-43400 affects the Linux kernel’s DRM/AMDGPU component. The vulnerability arises from missing upper-bound input validation in the amdgpu_userq_signal_ioctl handler, allowing huge input values to trigger an Out-Of-Memory (OOM) condition and thus a Denial of Service. The issue is mitigated ...